ZHCSGE0B June 2017 – January 2019 TPS53681
PRODUCTION DATA.
The READ_IOUT command returns the output current in amperes. The update rate is 100us. READ_IOUT is a linear format command, and must be accessed through Read Word Transactions.
READ_IOUT is a paged register. In order to access READ_IOUT for channel A, PAGE must be set to 00h. In order to access the READ_IOUT register for channel B, PAGE must be set to 01h. For simultaneous access of channels A and B, the PAGE command must be set to FFh. READ_IOUT is also a phased register. Depending on the configuration of the design, for channel A, PHASE must be set to 00h to access Phase 1, 01h to access Phase 2, etc... PHASE must be set to FFh to access all phases simultaneously. PHASE may also be set to 80h to readack the total phase current (sum of all active phase currents for the active channel) measurement, as described in Output Current Sense and Calibration. Note that READ_IOUT is only a phased command for Channel A (PAGE 0).
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| R | R | R | R | R | R | R | R |
| READ_IOUT_EXP | READ_IOUT_MAN | ||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| R | R | R | R | R | R | R | R |
| READ_IOUT_MAN | |||||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 15:11 | READ_IOUT_EXP | R | Current
Status |
Linear two's complement format exponent. |
| 10:0 | READ_IOUT_MAN | R | Current
Status |
Linear two's complement format mantissa. |
Attempts to write to this command results in invalid transactions. The device ignores the invalid data, sets the appropriate flags in STATUS_CML and STATUS_WORD, and asserts the PMB_ALERT signal to notify the system host of an invalid transaction.